Clarity™ is the ultimate clarifier for both fresh and saltwater. It employs an advanced polymeric flocculating agent that is both reef and plant safe. Clarity™ is the only clarifier on the market that does it all! Clarity™ will clear all types of clouding including, but not limited to, chemical clouding and particulate clouding (i.e. stirred up gravel bed). Freshwater and Marine. Plant and reef safe.